If you experience any of the following you should go to the nearest hospital emergency department as soon as possible: 1  Heavy bleeding (soaking two pads every hour and/or passing golf ball sized clots) 2  Severe abdominal pain or shoulder pain. 3  Fever or chills. 4  Dizziness or fainting. 5  Vaginal discharge that smells unpleasant.
One of the most famous emission nebulae is the Orion Nebula (M42) located just below Orionâs belt. Another common type of emission nebula is a planetary nebula. These objects consist of a central white dwarf star surrounded by clouds of gas released as the original star evolved to the white dwarf phase.
The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated in the Milky Way, being south of Orion's Belt in the constellation of Orion.he Orion Nebula contains a very young open cluster, known as the Trapezium due to the asterism of its primary four stars. Two of these can be resolved into their component binary systems on nights with good seeing, giving a total of six stars.